A constant potential differene accelerates several singly-charged isotopes of palladium, which are then shot into a magnetic field in a mass spectrograph. the isotoe of mass 106 moves in a circular arc of diameter 44 cm. another track shows up at 42.74 cm. find the atomic mass of the second isotope.

Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)